Saturday
April 18, 2015

Homework Help: Chemistry

Posted by Desmond on Tuesday, May 8, 2007 at 4:17am.

If one mole of the compound Al4C3 has a mass of 144g and one mole of carbon has a mass of 12g, calculate the relative atomic mass of the element aluminium.

4 Al + 3 C=144
C=12
4 Al + 3 *12=144

solve for Al

So C=36 which leaves 108 divided by 4 - so 1 mole of Al = 52 ---- is this correct?


If you get 52 from 108/4, you need a new calculator.

is the answer 27 by any chance

yes, 108/4 = 27

However, it isn't by chance. :-)

Long day! thanks for your help

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

science - if one mole of the compound AL4C3 has a mass of 144g and mole of ...
science - if one mole of the compound Al4C3 has a mass of 144g and one mole of ...
science - If one mole of the compound Al 4 C 3 has a mass of 144 g and one mole ...
Math/Chemistry - the atomic mass of an element is the mass, in grams, of one ...
Chemistry - if each "hydrogen" atom has a mass of 1g and each "carbon" atom has ...
Chemistry (Check) - Classify each of these statements as always true, sometimes ...
physical chemistry - 1 mole of element x has mass, 0.444 times the mass of 1mole...
Chemistry (Help) - Completion (Help) To find the mass of a mole of a compound, ...
biology - 1 mole of an element or compound contains 6.20 times 10 to the 23rd ...
Chemistry - Completion To calculate the percent composition of a known compound...

Members